Heat pipe with state feedback function

Abstract

The invention belongs to the technical field of heat pipes, and particularly relates to a heat pipe with a state feedback function. The working state of the heat pipe can be monitored in real time and automatically adjusted, it is ensured that the heat pipe is always in the optimal operation condition, and the applicability and reliability of the heat pipe are improved. The heat pipe comprises a heat pipe body used for transferring heat, and the heat pipe body is integrated with a temperature sensor channel used for installing a temperature sensor. The temperature sensor is used for monitoring the working temperature of the heat pipe body.

Description

Technical Field

[0001] The invention belongs to the technical field of heat pipes, and in particular relates to a heat pipe with a state feedback function. Background Art

[0002] A heat pipe is a highly efficient heat transfer element that transfers heat by using the phase change (evaporation and condensation) of the internal working fluid. Its basic structure includes a closed tubular shell filled with an appropriate amount of working fluid (such as water, ammonia or Freon, etc.).

[0003] Heat pipe technology is widely used in many fields such as heat dissipation of electronic equipment, heat exchange equipment in the industrial and pharmaceutical industries. Although heat pipes have excellent heat transfer performance, they still face challenges in practical applications:

[0004] 1. The working efficiency of heat pipes is highly dependent on the operating temperature. If external conditions change, such as ambient temperature fluctuations or load increases, the heat pipe may not be able to adjust its state in time, thus affecting the heat transfer effect. Even the heat pipe working fluid fails.

[0005] Second, traditional heat pipes often lack built-in status monitoring functions, making it difficult to understand their working conditions in real time, increasing the difficulty and cost of maintenance. When the working fluid pressure is too high, there is even a risk of explosion. (If the working fluid is water, when the temperature exceeds 375 degrees Celsius, the internal pressure may be as high as 22MPa). Summary of the invention

[0006] The present invention aims at solving the defects in the prior art and provides a heat pipe with a state feedback function.

[0007] To achieve the above object, the present invention adopts the following technical solution: a heat pipe with a state feedback function comprises a heat pipe body for transferring heat, wherein the heat pipe body is integrated with a temperature sensor channel for installing a temperature sensor. The temperature sensor is used to monitor the working temperature of the heat pipe body.

[0008] Furthermore, a working fluid temperature and pressure detection port is provided at one end of the heat pipe body, and the working fluid temperature and pressure detection port is communicated with an internal working fluid chamber of the heat pipe body and is used to monitor the state of the working fluid.

[0009] Furthermore, the heat pipe body is equipped with a working fluid regulating connection port connected thereto, and the working fluid regulating connection port is connected to the working fluid chamber inside the heat pipe; it is used to regulate the working fluid state to ensure the safe operation or optimized working state of the heat pipe body.

[0010] Furthermore, the temperature sensor channel adopts a tubular structure, and the tubular structure is integrated into the heat pipe body through welding or threaded connection and / or snap connection.

[0011] Furthermore, the temperature sensor adopts a thermal resistor or a thermocouple to detect the working temperature of the heat pipe in real time.

[0012] Furthermore, at least one connecting flange is provided on the outer wall of the heat pipe body for connecting to an external mechanical mechanism.

[0013] Furthermore, a fin structure is provided on the outside of the heat pipe body to enhance heat dissipation and protect the sensor in the temperature sensor channel from overheating.

[0014] Furthermore, the fin structure is made of a high thermal conductivity material.

[0015] Furthermore, the method of using a heat pipe with a state feedback function comprises the steps of:

[0016] S1. Insert the temperature sensor into the temperature sensor channel;

[0017] S2, real-time monitoring of the working temperature of the heat pipe;

[0018] S3. When external conditions change, adjust the position of the heat pipe through the connecting flange and external mechanical mechanism;

[0019] S4, monitoring the temperature and pressure of the working fluid through the working fluid temperature and pressure detection port;

[0020] S5. When necessary, adjust the state of the working fluid through the working fluid adjustment connection port to ensure the safe operation of the heat pipe body or optimize the working state.

[0021] Compared with the prior art, the present invention has beneficial effects.

[0022] The heat pipe system with a state feedback function of the present invention can realize real-time monitoring and automatic adjustment of the working state of the heat pipe by integrating key components such as a temperature sensor channel, a working fluid temperature and pressure detection port, and a working fluid adjustment connection port, thereby ensuring that it is always under the best operating conditions, improving the applicability and reliability of the heat pipe, expanding its application range, and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. The protection scope of the present invention is not limited to the following description.

[0024] Figure 1 Schematic diagram of three ways to integrate the temperature sensor channel into the heat pipe body.

[0025] Figure 2 It is a schematic diagram of the heat pipe body structure.

[0026] In the figure, 1. heat pipe body; 2. temperature sensor channel; 3. heat pipe fin; 4. working fluid adjustment connection port; 5. working fluid temperature and pressure detection port; 6. connection flange. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and beneficial effects of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0028] In the application of heat pipe technology, the different working conditions and working temperatures will limit the application and selection of many heat pipes. When the external conditions of the heat pipe change, if the heat pipe cannot make corresponding adjustments, the operating efficiency of the heat pipe will be reduced or even damaged.

[0029] like Figure 2 As shown, the present invention provides a heat pipe with a state feedback function, comprising a heat pipe body 1 for transferring heat, wherein the heat pipe body 1 is integrated with a temperature sensor channel 2 for installing a temperature sensor. The temperature sensor is used to monitor the working temperature of the heat pipe body 1.

[0030] Embodiment 1: A working fluid temperature and pressure detection port 5 is provided at one end of the heat pipe body 1, and the working fluid temperature and pressure detection port 5 is connected to the internal working fluid chamber of the heat pipe body 1 and is used to monitor the state of the working fluid. Application of the working fluid temperature and pressure detection port 5:

[0031] A. Temperature sensor: Install a high-precision temperature sensor, such as a thermocouple or RTD resistance temperature detector, at the detection port to accurately measure the temperature of the working fluid in the heat pipe.

[0032] B. Pressure sensor: Similarly, a pressure sensor is installed to measure the pressure inside the heat pipe. Different types of sensors can be used, such as piezoresistive, capacitive or strain gauge.

[0033] Embodiment 2: The heat pipe body 1 is equipped with a working fluid regulating connection port 4 connected thereto, and the working fluid regulating connection port 4 is connected to the working fluid chamber inside the heat pipe; it is used to adjust the working fluid state to ensure the safe operation or optimized working state of the heat pipe body. Specifically, it is connected to the working fluid chamber: the working fluid regulating connection port 4 is directly connected to the working fluid chamber inside the heat pipe, so that new working fluid can be added to the heat pipe or excess working fluid can be discharged through this interface. And high-quality seals such as O-rings or metal gaskets are used around the working fluid regulating connection port 4 to ensure that no leakage occurs during operation and that it remains completely sealed in the non-operating state.

[0034] Preferably, the working fluid regulating connection port 4 may be equipped with a built-in or external safety valve device to provide safe operation guarantee when the working fluid needs to be discharged or supplemented.

[0035] Embodiment 3: The temperature sensor channel 2 adopts a tubular structure, which is integrated into the heat pipe body 1 by welding, threaded connection, or snap connection. The temperature sensor adopts a thermal resistor or a thermocouple to detect the working temperature of the heat pipe in real time. Figure 1 As shown, the temperature sensor channel 2 is arranged in the inner cavity of the heat pipe body 1, the side wall is connected to the inner cavity, or the side wall is not connected to the inner cavity. Among them, the method of being arranged in the inner cavity is direct contact and can provide real-time feedback. It is suitable for applications requiring extremely high measurement accuracy. The method of being arranged on the side wall and connected to the inner cavity is direct contact and is suitable for most industrial application scenarios. It not only ensures measurement accuracy but also takes into account the convenience of installation and maintenance. The method of being arranged on the side wall and not connected to the inner cavity will not significantly change the internal structure of the heat pipe, and has the advantage of easy maintenance.

[0036] Embodiment 4: The outer wall of the heat pipe body is provided with at least one connecting flange 6 for connecting with an external mechanical mechanism. The position of the heat pipe can be adjusted according to changes in external conditions to maintain the best working efficiency of the heat pipe.

[0037] Embodiment 5: A fin structure 3 is provided on the outside of the heat pipe body 1 to enhance heat dissipation and protect the sensor in the temperature sensor channel 2 from overheating. The fin structure 3 is made of high thermal conductivity materials, including but not limited to aluminum and its alloys, copper and its alloys, silver, carbon fiber composite materials, graphene-based materials, and ceramic materials such as aluminum nitride and silicon nitride.

[0038] Embodiment 6: A method for using a heat pipe with a state feedback function, comprising the steps of:

[0039] S1, insert the temperature sensor into the temperature sensor channel 2;

[0040] S2, real-time monitoring of the working temperature of the heat pipe;

[0041] S3. When external conditions change, the position of the heat pipe is adjusted by connecting flange 6 and external mechanical mechanism;

[0042] S4, monitoring the temperature and pressure of the working fluid through the working fluid temperature and pressure detection port 5;

[0043] S5. When necessary, adjust the state of the working medium through the working medium adjustment connection port 4 to ensure safe operation of the heat pipe body or optimize the working state.

[0044] The present invention adds a reserved channel 2 for the temperature sensor on the side of the heat pipe, and integrates the channel 2 into the heat pipe body 1 in three different ways. All three methods can meet the applicable requirements through modern welding processes. Then, the temperature sensor (thermal resistor or thermocouple) is installed in the channel 2 to detect the working temperature of the heat pipe 1 in real time. When the external temperature changes, the position of the heat pipe can be adjusted through the connected flange 6 and the external mechanical mechanism, so that the heat pipe always works at the best efficiency.

[0045] The present invention adds a temperature and pressure detection port 5 of the working fluid at the rear end of the heat pipe. When the working fluid temperature or pressure is too high, the working fluid state can be adjusted through the working fluid adjustment connection port 4 to ensure the safe operation of the heat pipe body or to make the working fluid run in the best working state.

[0046] The present invention has a fin structure outside the heat pipe, and the fin structure has no limit on the vertical and horizontal arrangement and can be adjusted according to the refrigerant, but the reserved channel 2 that wraps the sensor prevents the sensor temperature from being too high and affecting the use.

[0047] The present invention is used for a heat pipe with a state feedback function, and is suitable for feeding back state information such as temperature and pressure to a control system to adjust the working medium of the heat pipe when the heat pipe conducts heat to the applicable object through the heat pipe, the operating state of the filler inside the heat pipe that conducts heat through phase change, the position characteristics of the heat pipe body, and the motion characteristics of the control object outside the heat pipe. The heat pipe can be used to cool down materials (such as cooling a graphitization furnace), or used when the working medium is in a special state (water working medium is in a critical state of 374°C, and the pressure is reduced by expanding the volume).

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, it should be understood by those skilled in the art that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features therein may be replaced by equivalents. Therefore, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope defined by the claims of the present invention.

Claims

1. A heat pipe with a state feedback function, comprising a heat pipe body (1) for transferring heat, characterized in that: The heat pipe body (1) is integrated with a temperature sensor channel (2) for installing a temperature sensor, and the temperature sensor is used to monitor the working temperature of the heat pipe body (1).

2. The heat pipe with state feedback function according to claim 1, characterized in that: A working fluid temperature and pressure detection port (5) is provided at one end of the heat pipe body (1); the working fluid temperature and pressure detection port (5) is connected to the internal working fluid chamber of the heat pipe body (1) and is used to monitor the state of the working fluid.

3. The heat pipe with state feedback function according to claim 1, characterized in that: The heat pipe body (1) is equipped with a working medium regulating connection port (4) in communication therewith, and the working medium regulating connection port (4) is in communication with the working medium chamber inside the heat pipe, and is used to regulate the working medium state to ensure safe operation of the heat pipe body or optimize the working state.

4. The heat pipe with state feedback function according to claim 1, characterized in that: The temperature sensor channel (2) adopts a tubular structure, and the tubular structure is integrated onto the heat pipe body (1) by welding or threaded connection and / or snap connection.

5. The heat pipe with state feedback function according to claim 1, characterized in that: The temperature sensor adopts a thermal resistor or a thermocouple, which is used to detect the working temperature of the heat pipe in real time.

6. The heat pipe with state feedback function according to claim 1, characterized in that: The outer wall of the heat pipe body is provided with at least one connecting flange (6) for connecting with an external mechanical mechanism.

7. The heat pipe with state feedback function according to claim 1, characterized in that: The heat pipe body (1) is provided with a fin structure (3) on the outside to enhance heat dissipation and protect the sensor in the temperature sensor channel (2) from overheating.

8. The heat pipe with state feedback function according to claim 7, characterized in that: The fin structure (3) is made of a high thermal conductivity material.

9. The heat pipe with state feedback function according to claim 1, characterized in that: The method of using the heat pipe with state feedback function as claimed in any one of claims 1 to 6 comprises the steps of: S1, inserting the temperature sensor into the temperature sensor channel (2); S2, real-time monitoring of the working temperature of the heat pipe; S3, when external conditions change, the position of the heat pipe is adjusted through the connecting flange (6) and the external mechanical mechanism; S4, monitoring the temperature and pressure of the working fluid through the working fluid temperature and pressure detection port (5); S5. The state of the working medium is adjusted through the working medium adjustment connection port (4) to ensure safe operation of the heat pipe body or optimize the working state.

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